| 引用本文: | 曹太强,许建平,徐顺刚.光伏发电系统SPWM逆变电源谐波的抑制技术[J].电力自动化设备,2011,31(6): |
| CAO Taiqiang,XU Jianping,XU Shungang.Harmonic suppression of SPWM inverter for photovoltaic power[J].Electric Power Automation Equipment,2011,31(6): |
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| 摘要: |
| 对光伏发电系统的SPWM逆变电源产生谐波的原因进行了分析，设计了一种新型无源三相三角形-带通滤波器，该滤波器将LCL串联装置并联在主电路中，通过仿真数据选取最佳的LCL参数，并与阻波器串联以共同抑制光伏系统产生的谐波。理论分析、仿真和实验研究结果表明，该三相三角形-带通滤波器能有效抑制光伏发电系统中的3 ～ 19次等谐波，谐波总含量从31.5 % 减小到3.1 %。 |
| 关键词: 光伏发电 谐波分析 逆变器 三角形-带通无源滤波器 交流纹波 |
| DOI： |
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| 基金项目:国家自然科学基金资助项目（50677056） |
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| Harmonic suppression of SPWM inverter for photovoltaic power |
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CAO Taiqiang1, XU Jianping1, XU Shungang1,2
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1.School of Electrical Engineering，Southwest Jiaotong University，Chengdu 610031，China;2.College of Physics and Information Technology，Chongqing Normal University，Chongqing 400047，China
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| Abstract: |
| The causes of SPWM inverter harmonics are analyzed and a three-phase delta-band-pass filter is designed，which connects the LCL series device with the main circuit in parallel. The optimal LCL parameters are selected according to the simulative data. In series with the line trap，the harmonics produced by PV system are suppressed. Theoretic analysis，simulation and experiment show that，the designed three-phase delta-band -pass filter restrains the 3rd～19th harmonics and the total harmonic content is reduced from 31.5 % to 3.1 %. |
| Key words: photovoltaic power harmonic analysis electric inverters delta-band-pass passive filters current ripple |
